Surname Castro Bayona (Castro Bayona 
) , across the world, is a very rare last name. The surname Castro Bayona is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, Colombia, where it is a very rare surname, and Peru, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Castro Bayona | Ecuador, Peru, Colombia |
Lisa, David, Nerly, Valentina, Olga Lucia, Adela Francisca, and Diego Armando